Question

1. which of the following is not true about dna? a. dna is the basis for heredity b. dna is composed of 20 amino acids c. dna codes for protein synthesis d. dna can evolve e. all of these are correct

Explanation:

DNA is composed of nucleotides, not 20 amino - acids. Amino acids are building blocks of proteins. DNA is the basis for heredity, codes for protein synthesis and can evolve over time.

Answer:

B. DNA is composed of 20 amino acids